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Ber [7]
2 years ago
7

Simplify: -3x2 + 5x -22 + 4x2 - 9x

Mathematics
1 answer:
DiKsa [7]2 years ago
5 0

Answer:

B

Step-by-step explanation:

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Simplify the rational expression by rationalizing the denominator √15/√6x
noname [10]

Answer:

√10/2x

Step-by-step explanation:

Multiply by √6 on the top and bottom to rationalize the denominator.

(√15×√6)/(√6x×√6) = √90/6x = (√9×√10)/6x = 3√10/6x = √10/2x

4 0
2 years ago
Iris made bracelets with string and beads. She used x centimeters of string to make 7 bracelets. She used 17.8 centimeters of st
iren [92.7K]

Answer:

124.6 centimeters

Step-by-step explanation:

7(17.8) = x

Simplify:

x = 124.6

3 0
2 years ago
What is X?<br> x-3.9=12.4
valentinak56 [21]

Answer:

Its 8.5

Step-by-step explanation:

I calculator

12.4+-3.9=8.5

4 0
3 years ago
I don't like story problems...
Harlamova29_29 [7]
5 cm tall and still with a radius of 6 cm... do they want volume?
6 0
2 years ago
Jessica wants to make tarts. To make tarts, she needs ¾ of a cup of flour per batch of tarts. If Jessica has 9 cups of flour, th
Paul [167]

Answer:

108

Step-by-step explanation:

Jesicca wants to make tarts

She uses 3/4 cup of flour per batch

Jessica has 9 cups of flour hence the number of batches she will make can be calculated as follows

= 9÷ 3/4

= 9÷ 0.75

= 12

= 12×9

= 108

Hence Jessica will make 108 batches of tart

4 0
3 years ago
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